Remove observe-service plugin

Signed-off-by: Sean Sundberg <seansund@us.ibm.com>

Author: Sean Sundberg

Containerfile

@@ -10,7 +10,6 @@ USER root
 RUN curl -fsSL https://clis.cloud.ibm.com/install/linux | sh && \
     ibmcloud plugin install container-service -f && \
     ibmcloud plugin install container-registry -f && \
-    ibmcloud plugin install observe-service -f && \
     ibmcloud plugin install vpc-infrastructure -f && \
     ibmcloud config --check-version=false && \
     chown -R devops ${HOME}/.bluemix && \